Andrew ferrari



(No Model.)

A. FERRARI. GLASS LEBR.

No. 431,884; Patented July 8, 1890.

.IH. "wh m HIHIHHHIHHIHI.

INVENTOR:

ATI'ORN EY UNITED STATES PATENT OFFICE.

ANDREYV FERRARI, OE GLASSBOROUGH, NEW JERSEY, ASSIGNOR TO THE WVHITNEY GLASS \VORKS, OF SAME PLACE.

GLASS- SPEGIFICATION forming part of Letters Application filed December 7, 1889.

To aZZ whom it may concern.-

Be it known that 1, ANDREW FERRARI, a citizen of the United States, residing at Glassborough, in the county of Gloucester and State of New Jersey, have invented a new and useful Improvement in Glass-Leers, which improvement is fully set forth in the following specification and accompanying drawings.

My invention consists of novel improvements in glass-leers or glass-annealing leers, as will be hereinafter set forth and definitely claimed.

Figure 1. represents a transverse vertical section on line so as, Fig. 2, of a glass-leer em- I 5 bodying-my invention. Fig. 2 represents a longitudinal section thereof on line y y, Fig. 1.

Similar letters of reference indicate corresponding parts in the two figures.

Referring to the drawings, A designates a glass-annealing leer, on the floor B of which are supported the glass-supporting wagons or trucks C, said leer having double chambers D, each with an arch E, usual in such cases, said chambers D communicating with a single end chamber D.

F designates a pile of fire-brick or other refractory material located in said chamber D, and G designates a burner for hydrocarbon vapor, the same having its nozzle entering an opening H in the front wall of the leer, so as to direct the vapor against said fire-brick, it being noticed that the fire-brick occupies a position within the leer adjacent to said opening H and is elevated, whereby it does not interfere with the movements of the wagons G. In the floor B of the leer there are confluent passages K, the same discharging into the passages L M in the base of the leer, the

LEER.

Patent No. 431,884, dated July 8, 1890.

Serial No. 332,896. (No model.)

passage M being in communication with the chimney N. The hydrocarbon vapor is ig- 4o nited and is directed against the fire-brick F, whereby it is diffused over the wagons and fills the chamber of the leer, said brick also becoming highly heated, thus assisting in maintaining a high temperature in said chamher. The waste heat enters the passages L and M, and so reaches the chimney.

It will be seen that a single burner is employed for heating the two chambers, and the wagons, with the glass thereon, will be entirely 5o enveloped with heat, the waste heat only escaping after the glass has been effectively heated, owing to the passages being below the wagons. Air may be admitted into the'chambers through the openings H or other inlet.

I do not limit myself to the use of hydrocarbon vapor, as any other liquid fuel may be employed.

Having thus described my invention, What I claim as new, and desire to secure by Let- 6o ters Patent, is-

A leer having two chambers merging into a single chamber at one end and having confluent passages in the floor leading to the stack or chimney, combined with a single 65 burner located centrally at the outer end of the single chamber at an elevation near the dome of said latter chamber, whereby the heat is forced down upon the articles in the furnace and escapes through the confluent pas- 7o sages into the chimney, substantially as described.

ANDREW FERRARI. Witnesses:

JOHN A. WIEDERSHEIM, A. P. JENNINGS. 

